New graphics!

Thanks to FoeNix and Goliath I've added some new graphics to the page and the bulletin board. Goliath created the cool Holy Buffalo logo at the top of the new sidebar. And FoeNix is the man! He single-handedly modified all of the bulletin board graphics so that the would look good with dark backgrounds in two days! He also created several new avatars, smileys, and board logos with the color scheme in mind. Great work guys!